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Low Volume Window Label Program

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This page features helpful information, and answers to common questions, about the Building Codes Division's low volume window labeling program. It is designed to assist manufacturers and installers of low volume windows and related items known as exempt fenestration products.

Low volume windows and exempt fenestration products must be properly labeled before they can be sold in the State of Oregon. This page provides you with helpful information on what windows and related products must be labeled and what information must be printed on those labels.

 
Products that are exempt from testing
Commonly Asked Questions
 
Contact

If you have questions about the Oregon Residential Specialty Code, you can contact Mark Heizer at 503-373-0205 or Mark.R.Heizer@state.or.us.

If you have questions about the Low Volume Window Label Program, contact Laura Burns at 503-373-0226 or Laura.L.Burns@state.or.us.

 

 
Products that are exempt from testing

There are a limited amount of window products that are exempt from thermal performance testing (section NF1112.2 of the 2014 Oregon Residential Specialty Code). Among those exempt products are the following, if produced in low volume:

1. Windows;
 
2. Glazed doors;
 
3. Skylights; and
 
4. Solariums.

To qualify as a window product produced in low volume, a manufacturer cannot produce the above products in excess of the following maximums:

1. Windows, 750;
   
2. Glazed doors, 500;
   
3. Skylights, 1,000;  
Skylights that meet construction standards and are produced in low volume
Skylights that do not meet construction standards and are produced in low volume
   
4. Complete solariums, 25.

Exempt fenestration products are also exempt from the thermal performance standards of the 2014 Oregon Residential Specialty Code. While these products aren't produced in low volume, they often must meet certain construction requirements. Exempt fenestration products can be either:

1. Complete solariums that have a minimum of 0.5 inch (12.7 mm) space between the panes; or
   
2. Skylights that have a frame type that is either aluminum with a thermal break, aluminum with vinyl, or wood, and a glazing type that is a minimum of either 0.5 inch airspace between double layered low-e or triple layered acrylic.

All window products that are produced in low volume and exempt fenestration products must have labeling that is:

  • Imprinted, not handwritten;
  • Faces the interior of the dwelling;
  • Lists either the U-factor or U-factor class of the product; and
  • Remains attached to the product until a building inspector inspects and verifies the labeling.

All window products that are produced in low volume and exempt fenestration products must comply with product-specific labeling requirements.

 

 
Commonly Asked Questions

What is a 'low volume window'?
'Low volume window' is the term used to describe specialty windows and related products that are produced in small numbers. Most often, they are replacements for older or unique windows. The term includes windows and glazed doors, as well as certain kinds of skylights and solariums. More information about the maximum number of each product that can be produced and still qualify for the 'low volume window' designation is available here.

What is an 'exempt fenestration product'?
An 'exempt fenestration product' is either a skylight or solarium that is exempt from the thermal performance standards established in the Oregon Residential Specialty Code. While these products are not produced in small numbers, they often must meet certain construction requirements. More information about these products is available here.

Where do I get a label for my low volume window or exempt fenestration product?
Register with the Division and you can print your own; no more waiting for a shipment of labels. Once you register, a label log will be sent to you. Each label you use should be recorded on the log by the number and type of label. Then, you just send your completed label log back to the Division by January 31 of the following year. When printing your own labels, be sure they comply with OAR 918-480-0150 and Section NF1113 of the 2014 Oregon Residential Specialty Code.

How do I register for the Low Volume Window Label Program?
Contact Laura Burns at 503-373-0226 or Laura.L.Burns@state.or.us.